Coefficient of coincidence  Ratio of observed double crossovers to expected double crossovers.

TLS Online TPP Program

#Id: 1104

#Unit 2. Cellular Organization

Transmembrane domain with the binding sites for transported ligand.

TLS Online TPP Program

#Id: 9722

#Unit 6. System Physiology – Plant

Thorns are modified branches, as in citrus and acacia; spines

are modified leaves

Prickles are derived mainly from the epidermis and thus can be easily snapped off the stem, protect plants from larger herbivores

Trichomes, or hairs, provide a much more effective defense against insect pests

TLS Online TPP Program

#Id: 10452

#Unit 4. Cell Communication and Cell Signaling

Philadelphia chromosome generated by a translocation

between chromosomes 22 and 9

TLS Online TPP Program

#Id: 6877

#Unit 3. Fundamental Processes

The PRC2 complexes contain histone deacetylases that inhibit transcription. They also contain a subunit [E(z) in Drosophila, EZH2 in mammals] with a SET domain, which is the catalytic domain of several histone methyl transferases.

TLS Online TPP Program

#Id: 9881

#Unit 4. Cell Communication and Cell Signaling

Defensins and cathelicidin LL-37 are secreted constitutively by epithelial cells in many tissues, and are stored as well in neutrophil granules, where they contribute to killing phagocytosed microbes.